To every MQX RTCS users....

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To every MQX RTCS users....

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OOLife
Contributor III

Hi, all

 

 

I have serious & urgent problem with RTCS UDP.

 

My environment is here.

        MCF52259 / CodeWarrior 7.1.2 / MQX 3.4

 

The problem is that UDP Overrun Error.

 

Firstly, I found this problem from longer than 900 bytes UDP packets.

However, this problem occurs very frequently at less than short UDP packets.

 

I've searched on Freescale Web site and found so many articles about FEC OVERRUN error.

It also releated to packet losting problem.

 

In my case, Why short packet is received successfully? and long packet is always discarded by driver?

 

So, could you test for me that your software can receive 1000 ~ 1500 bytes UDP packet?

Actually, I'm almost dying because this problem...

 

Finally, I'm planning to move on MQX 3.5.

Is it valuable try?

 

 

Thank you very much for reading my article.

Please give your any kind of suggestion....

 

Regards.

OOLife.

 

 

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OOLife
Contributor III

Hi all

 

Finally, I got the answer.

 

Everything works fine !! :smileyvery-happy:

 

Don't create DMA Buffer (of RTCS Task) on the External Memory....

 

It's the answer.

 

BR

OOLife

 

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327件の閲覧回数
OOLife
Contributor III

Hi all

 

Finally, I got the answer.

 

Everything works fine !! :smileyvery-happy:

 

Don't create DMA Buffer (of RTCS Task) on the External Memory....

 

It's the answer.

 

BR

OOLife

 

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